ACETYL SH-TETRAPEPTIDE-1 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
ACETYL SH-TETRAPEPTIDE-1
Safety grade: A
This is a small chain of amino acids (the building blocks of proteins) that has been chemically modified to help improve skin texture and appearance. It works by supporting the skin's natural structure and resilience.
It conditions and softens the skin by helping to strengthen the skin barrier and improve overall skin firmness and elasticity.
Graded using: COSING.
Last verified: May 26, 2026
Other Skin Conditioning ingredients
- TOCOPHEROL — Grade A
- PROPYLENE GLYCOL — Grade A**
- XANTHAN GUM — Grade A
- DIMETHICONE — Grade A
- TOCOPHERYL ACETATE — Grade A
- PANTHENOL — Grade A
- CAPRYLYL GLYCOL — Grade A
- ETHYLHEXYLGLYCERIN — Grade A